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開關類型
雙電源開關(簡稱雙電源)主要是采用塑殼斷路器(CB級)或隔離開關(PC級)元件組成!按照國家標準GB/T14048.11-2008的規(guī)定,分為CB級、PC級和CC級
功能簡介
作為執(zhí)行元件,配以單片機為核心的自動控制器和帶機電聯(lián)鎖的控制機構,是一種性能完善、安全可靠、自動化程度高、使用范圍廣的雙電源開關。 產(chǎn)品適用于交流50/60Hz、690V及以下,額定電流自6A至1250A及以下的兩路電源(常用電源N和備用電源或發(fā)電機電源R)的供電系統(tǒng)中,因一路電源發(fā)生故障(停電、欠壓、過壓、斷相、頻率偏移)而進行電源之間的自動切換,以保證供電的可靠性和安全性。廣泛應用于高層建筑、小區(qū)、醫(yī)院、機場、碼頭、消防、冶金、化工、紡織等不允許停電的重要場所,實現(xiàn)無人值守連續(xù)供電。
pc級雙電源是什么
(pc級雙電源)雙電源自動切換開關是指:一種由微處理器控制,用于電網(wǎng)系統(tǒng)中網(wǎng)電與網(wǎng)電或網(wǎng)電與發(fā)電機電源啟動切換的裝置,可使電源連續(xù)源供電。系列雙電源,當常用電突然故障或停電時,通過雙電源切換開關,自動投入到備用電源上,(小負荷下備用電源也可由發(fā)電機供電,)使設備仍能正常運行。*常見的是電梯、消防、監(jiān)控上、照明等。
雙電源自動切換開關的分類及定義
雙電源自動切換開關主要分為PC級雙電源開關(整體式)和CB級雙電源開關(雙斷路器式)
PC級雙電源自動切換開關:能夠接通、承載、但不用于分斷短路電流的雙電源。
雙電源若選擇不具有過電流脫扣器的負荷開關作為執(zhí)行器則屬于PC級自動轉換開關。不具備保護功能,但其具備較高的耐受和接通能力,能夠確保開關自身的安全,不因過載或短路等故障而損壞,在此情況下保證可靠的接通回路。
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。ABB所展示的LH系列消防應急照明和疏散指示系統(tǒng),主要由應急照明燈、指示標志燈、集中電源箱EPS、應急照明控制器組成,通過聯(lián)網(wǎng)技術把各個設備組成一個智能控制網(wǎng)絡。在公路隧道火災發(fā)生時,通過智能逃生路線核心算法,可根據(jù)火災發(fā)生的位置,自動生成逃生路線,并可隨著火源位置的改變立即更新逃生路線,引導火災現(xiàn)場人員快速找到安全出口,真正使逃生人員通過安全、可靠、真實的逃生路線快速撤離。